The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 03, 2017
Filed:
Jul. 30, 2014
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventors:
Karan Singh Jain, Dallas, TX (US);
Timothy Bryan Merkin, Richardson, TX (US);
Susan Curtis, Allen, TX (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G05F 1/575 (2006.01); G05F 1/10 (2006.01); G05F 1/56 (2006.01);
U.S. Cl.
CPC ...
G05F 1/575 (2013.01); G05F 1/10 (2013.01); G05F 1/56 (2013.01);
Abstract
A circuit and method for providing a current limiting feature in a low dropout ('LDO') linear voltage regulator. A pass element generates an output voltage that is less than the input voltage. The pass element is normally enabled by an error amplifier that compares a feedback signal from the output of the pass element with a reference signal. However, the pass element may be enabled by a current limiting circuit that bypasses the error amplifier to limit the current generated at the output of the pass element.